Maybe everyone knows this already, but until recently I had no idea that MS qualifies people for a disabled persons railcard.
I saw something on the MS Society website and applied on Thursday. Today I got a message to say it is in the post. £54 for three years and qualifies you, and another person, to 1/3 off fares (at any time of day).
The online form is a bit confusing because you may not be able to choose one of their eligibility options. So I just selected the first one and attached my diagnosis letter with a note.
If I had done this before, I could have saved most of the £54 just this week!